On Wednesday 05 March 2014 19:16:08 Thierry Moreau wrote: > On 03/05/14 16:40, Larry Finger wrote: > > Please give me the exact set of commands you use to get this problem. If > > possible, capture the console output. As I am currently running > > long-term tests of the latest version of rtl8192ce using an RTL8188CE > > (10ec:8176), it will be a perfect time to test. > > Here is the command script, and the console log > (....sh 2>&1 | tee ....log) Instead of cat, I used single-second sleeps as can be seen in the attached script. Our logs are roughly the same (I have replaced the last three bytes of the MAC address by XX for privacy). The rtlwifi module is patched[1], hence the out-of-tree marking. What is the problem that you are experiencing? I am able to connect although it took half a minute for the first ICMP ping packets to pass (and then there is still a lot of packet loss). This pattern is observable on the past 2.5 weeks that I have been running ping tests (ping every second to the gateway). > Is it possible that the Shuttle system be arranged with a digital output > enabling/inhibiting the Realtek wifi interface active participation in > wifi protocol? I didn't understand the first part, are you referring to a possible mistake in attaching the antennas? When I opened up the case, I saw two antennas that were properly secured to the card. Regards, Peter [1]: http://lkml.org/lkml/2014/2/14/430
Attachment:
repro-shuttle.sh
Description: application/shellscript
Script started on Thu 06 Mar 2014 02:43:56 PM CET
+ iface=wlan0
+ uname -a
Linux work 3.14.0-rc2-custom-00267-g9398a10 #4 SMP PREEMPT Wed Feb 12 20:41:43 CET 2014 x86_64 GNU/Linux
+ dmesg
+ grep -i wifi -C 4 -n
1125-[ 11.401304] [drm] No driver support for vblank timestamp query.
1126-[ 11.514185] rtl8192ce:_rtl92ce_read_chip_version():<0-0> Chip Version ID: B_CUT_88C
1127-[ 11.526221] rtl8192ce: rtl8192ce: Power Save off (module option)
1128-[ 11.526222] rtl8192ce: rtl8192ce: FW Power Save off (module option)
1129:[ 11.526242] rtl8192ce: Using firmware rtlwifi/rtl8192cfwU_B.bin
1130-[ 11.604096] systemd[1]: Received SIGCHLD from PID 137 (systemd-vconsol).
1131-[ 11.612617] systemd[1]: Got SIGCHLD for process 137 (systemd-vconsol)
1132-[ 11.621165] systemd[1]: Child 137 died (code=exited, status=0/SUCCESS)
1133-[ 11.629346] systemd[1]: Child 137 belongs to systemd-vconsole-setup.service
--
1148-[ 11.839624] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
1149-[ 11.855677] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm)
1150-[ 11.871911] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm)
1151-[ 11.888513] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
1152:[ 11.897674] rtlwifi: wireless switch is on
1153-[ 11.908296] systemd[1]: sys-subsystem-net-devices-wlan0.device changed dead -> plugged
1154-[ 11.911950] input: HDA Intel HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
1155-[ 11.913175] input: HDA Intel Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
1156-[ 11.915407] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
--
1577-[ 16.885077] systemd[1]: Got D-Bus request: org.freedesktop.DBus.Local.Disconnected() on /org/freedesktop/DBus/Local
1578-[ 16.890932] ------------[ cut here ]------------
1579-[ 16.890944] WARNING: CPU: 2 PID: 134 at /home/peter/linux/kernel/locking/mutex.c:516 __mutex_lock_slowpath+0x357/0x370()
1580-[ 16.890947] DEBUG_LOCKS_WARN_ON(in_interrupt())
1581:[ 16.891013] Modules linked in: xt_tcpudp nf_conntrack_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_defrag_ipv6 xt_conntrack nf_conntrack iptable_filter ip6table_filter ip_tables ip6_tables x_tables snd_hda_codec_hdmi arc4 snd_hda_codec_idt snd_hda_codec_generic rtl8192ce(O) rtl_pci(O) gma500_gfx rtlwifi(O) mac80211 snd_hda_intel i2c_algo_bit drm_kms_helper snd_hda_codec snd_hwdep drm cfg80211 snd_pcm snd_timer snd evdev r8169 pcspkr iTCO_wdt i2c_i801 i2c_core iTCO_vendor_support video rfkill rtl8192c_common(O) coretemp microcode lpc_ich rtsx_pci_ms mii memstick soundcore fan processor thermal button ext4 crc16 mbcache jbd2 hid_logitech_dj usbhid hid sd_mod rtsx_pci_sdmmc mmc_core ahci libahci libata scsi_mod ehci_pci uhci_hcd ehci_hcd usbcore usb_common rtsx_pci mfd_core
1582-[ 16.891018] CPU: 2 PID: 134 Comm: systemd-journal Tainted: G O 3.14.0-rc2-custom-00267-g9398a10 #4
1583-[ 16.891019] Hardware name: Shuttle Inc. XS36V/XS36V, BIOS 1.11 12/18/2012
1584-[ 16.891026] 0000000000000009 ffff88012fd03bf0 ffffffff8146cca0 ffff88012fd03c38
1585-[ 16.891030] ffff88012fd03c28 ffffffff8104c45d ffff880037945818 ffff880037945818
+ lsmod
Module Size Used by
xt_tcpudp 3111 1
nf_conntrack_ipv6 7995 1
nf_conntrack_ipv4 7754 1
nf_defrag_ipv4 1403 1 nf_conntrack_ipv4
nf_defrag_ipv6 25934 1 nf_conntrack_ipv6
xt_conntrack 3265 2
nf_conntrack 66712 3 xt_conntrack,nf_conntrack_ipv4,nf_conntrack_ipv6
iptable_filter 1488 1
ip6table_filter 1428 1
ip_tables 16451 1 iptable_filter
ip6_tables 16160 1 ip6table_filter
x_tables 17522 6 ip6table_filter,ip_tables,xt_tcpudp,xt_conntrack,iptable_filter,ip6_tables
snd_hda_codec_hdmi 36172 1
arc4 2000 2
snd_hda_codec_idt 43450 1
snd_hda_codec_generic 52827 1 snd_hda_codec_idt
rtl8192ce 73667 0
rtl_pci 24976 1 rtl8192ce
gma500_gfx 174510 1
rtlwifi 71601 2 rtl_pci,rtl8192ce
mac80211 490444 3 rtl_pci,rtlwifi,rtl8192ce
snd_hda_intel 34841 0
i2c_algo_bit 5391 1 gma500_gfx
drm_kms_helper 35572 1 gma500_gfx
snd_hda_codec 98879 4 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_intel
snd_hwdep 5852 1 snd_hda_codec
drm 237941 2 drm_kms_helper,gma500_gfx
cfg80211 430184 2 mac80211,rtlwifi
snd_pcm 80379 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_timer 18709 1 snd_pcm
snd 51167 8 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
evdev 10981 4
r8169 58223 0
pcspkr 1995 0
iTCO_wdt 5407 0
i2c_i801 11109 0
i2c_core 23780 5 drm,i2c_i801,drm_kms_helper,i2c_algo_bit,gma500_gfx
iTCO_vendor_support 1929 1 iTCO_wdt
video 11540 1 gma500_gfx
rfkill 15683 1 cfg80211
rtl8192c_common 55112 1 rtl8192ce
coretemp 6390 0
microcode 15090 0
lpc_ich 13368 0
rtsx_pci_ms 7418 0
mii 4027 1 r8169
memstick 7504 1 rtsx_pci_ms
soundcore 944 1 snd
fan 2785 0
processor 24170 0
thermal 8556 0
button 4477 0
ext4 481304 4
crc16 1359 1 ext4
mbcache 6074 1 ext4
jbd2 82736 1 ext4
hid_logitech_dj 10599 0
usbhid 40843 0
hid 89807 2 usbhid,hid_logitech_dj
sd_mod 31817 5
rtsx_pci_sdmmc 13924 0
mmc_core 95817 1 rtsx_pci_sdmmc
ahci 23403 4
libahci 21484 1 ahci
libata 172031 2 ahci,libahci
scsi_mod 132830 2 libata,sd_mod
ehci_pci 3960 0
uhci_hcd 33795 0
ehci_hcd 63800 1 ehci_pci
usbcore 180840 4 uhci_hcd,ehci_hcd,ehci_pci,usbhid
usb_common 1648 1 usbcore
rtsx_pci 32831 2 rtsx_pci_ms,rtsx_pci_sdmmc
mfd_core 3249 2 lpc_ich,rtsx_pci
+ sleep 1
+ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:on
+ sleep 1
+ iw dev wlan0 info
Interface wlan0
ifindex 3
wdev 0x1
addr e0:91:53:XX:XX:XX
type managed
wiphy 0
+ sleep 1
+ iw dev wlan0 set channel 2
command failed: Device or resource busy (-16)
+ sleep 1
+ iw dev wlan0 scan
command failed: Network is down (-100)
+ sleep 1
+ ip link set up wlan0
+ sleep 1
+ iw dev wlan0 scan
BSS 48:f9:25:00:01:13(on wlan0)
TSF: 10820542146 usec (0d, 03:00:20)
freq: 2472
beacon interval: 100 TUs
capability: ESS ShortPreamble ShortSlotTime (0x0421)
signal: -54.00 dBm
last seen: 26 ms ago
Information elements from Probe Response frame:
SSID: Hermes_Mobile_Hotspot
Supported rates: 1.0* 2.0 5.5 11.0
DS Parameter set: channel 13
+ sleep 1
+ iwlist wlan0 scanning
wlan0 Scan completed :
Cell 01 - Address: 48:F9:25:00:01:13
Channel:13
Frequency:2.472 GHz (Channel 13)
Quality=56/70 Signal level=-54 dBm
Encryption key:off
ESSID:"Hermes_Mobile_Hotspot"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Mode:Master
Extra:tsf=0000000284f45ec2
Extra: Last beacon: 1943ms ago
IE: Unknown: 00154865726D65735F4D6F62696C655F486F7473706F74
IE: Unknown: 010482040B16
IE: Unknown: 03010D
IE: Unknown: DD2A000C42000000011E001000000066160500004C563132333437000000000000000000000000000502A809
+ sleep 1
+ iwconfig wlan0 channel 2
Error for wireless request "Set Frequency" (8B04) :
SET failed on device wlan0 ; Device or resource busy.
+ sleep 1
+ ip link set down wlan0
+ sleep 1
+ iw dev wlan0 interface add wlan2 type managed
+ sleep 1
+ iwconfig
wlan2 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:on
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated
Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
+ sleep 1
+ iw dev wlan2 set channel 2
command failed: Device or resource busy (-16)
+ sleep 1
real 0m15.794s
user 0m0.137s
sys 0m0.417s
Script done on Thu 06 Mar 2014 02:44:12 PM CET
